Registration Dossier
Registration Dossier
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EC number: 700-993-7 | CAS number: -
Partition coefficient
Administrative data
Link to relevant study record(s)
- Endpoint:
- partition coefficient
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2013
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 117 (Partition Coefficient (n-octanol / water), HPLC Method)
- Deviations:
- no
- Principles of method if other than guideline:
- For the test item no pKa values are available. Considering the pH range relevant for the natural environment, the measurement was performed at pH 7.
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- HPLC method
- Partition coefficient type:
- octanol-water
- Analytical method:
- high-performance liquid chromatography
- Type:
- log Pow
- Partition coefficient:
- 0.9 - 1.9
- Temp.:
- 25 °C
- pH:
- 2.3
- Remarks on result:
- other: peaks with an area > 1 % were integrated.
- Type:
- log Pow
- Partition coefficient:
- 1
- Temp.:
- 25 °C
- pH:
- 2.3
- Remarks on result:
- other: Area % weighed Log Pow for all peaks of the test item
- Conclusions:
- The partition coefficient (logPow) of the test item was determined to be 1.0 at 25 °C. The value is corresponding to the area weighed logPow for all peaks of the test item.
- Executive summary:
For the test item the partition coefficient was determined by the HPLC-method according OECD TG 117. In order to ensure a stable performance of the HPLC column, the column temperature was set to 40°C. The reference Pow-values in the OECD guideline presumably refer to 25°C. Even though the column temperature was 40°C, this temperature has no influence on the result of the determination. Therefore the Pow -value of the test item determined within this study also refers to 25 °C.The partition coefficient (logPow) was determined to be in the range of 0.9 to 1.9 at 25 °C. The area weighed logPow for all peaks of the test item was determined to be 1.0.
Reference
Description of key information
According to OECD Guildeline 117, the partition coefficient range (logPow) of the test item was determined to be 0.9 to 1.9 at 25 °C.
Key value for chemical safety assessment
- Log Kow (Log Pow):
- 1
- at the temperature of:
- 25 °C
Additional information
The value is corresponding to the area weighed logPow for all peaks of the test item.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
